<!--
 * @description: It is troublesome to implement radio button group in the form. So it is extracted independently as a separate component
-->
<template>
  <RadioGroup v-bind="attrs" v-model:value="state" button-style="solid" @change="handleChange">
    <template v-for="item in getOptions" :key="`${item.value}`">
      <RadioButton v-if="props.isBtn" :value="item.value" :disabled="item.disabled">
        {{ item.label }}
      </RadioButton>
      <Radio v-else :value="item.value" :disabled="item.disabled">
        {{ item.label }}
      </Radio>
    </template>
  </RadioGroup>
</template>
<script lang="ts">
import { defineComponent, PropType, ref, watchEffect, computed, unref, watch } from "vue";
import { Radio } from "ant-design-vue";
import { isFunction } from "/@/utils/Is";
import { useRuleFormItem } from "/@/hooks/component/UseFormItem";
import { useAttrs } from "/@/hooks/core/UseAttrs";
import { propTypes } from "/@/utils/PropTypes";
import { get, omit } from "lodash-es";
import { useI18n } from "/@/hooks/web/UseI18n";

type OptionsItem = { label: string; value: string | number | boolean; disabled?: boolean };

export default defineComponent({
  name: "ApiRadioGroup",
  components: {
    RadioGroup: Radio.Group,
    RadioButton: Radio.Button,
    Radio
  },
  props: {
    api: {
      type: Function as PropType<(arg?: Recordable | string) => Promise<OptionsItem[]>>,
      default: null
    },
    params: {
      type: [Object, String] as PropType<Recordable | string>,
      default: () => ({})
    },
    value: {
      type: [String, Number, Boolean] as PropType<string | number | boolean>
    },
    isBtn: {
      type: [Boolean] as PropType<boolean>,
      default: false
    },
    numberToString: propTypes.bool,
    resultField: propTypes.string.def(""),
    labelField: propTypes.string.def("label"),
    valueField: propTypes.string.def("value"),
    immediate: propTypes.bool.def(true)
  },
  emits: ["options-change", "change"],
  setup(props, { emit }) {
    const options = ref<OptionsItem[]>([]);
    const loading = ref(false);
    const isFirstLoad = ref(true);
    const emitData = ref<any[]>([]);
    const attrs = useAttrs();
    const { t } = useI18n();
    // Embedded in the form, just use the hook binding to perform form verification
    const [state] = useRuleFormItem(props);

    // Processing options value
    const getOptions = computed(() => {
      const { labelField, valueField, numberToString } = props;

      return unref(options).reduce((prev, next: Recordable) => {
        if (next) {
          const value = next[valueField];
          prev.push({
            label: next[labelField],
            value: numberToString ? `${value}` : value,
            ...omit(next, [labelField, valueField])
          });
        }
        return prev;
      }, [] as OptionsItem[]);
    });

    watchEffect(() => {
      props.immediate && fetch();
    });

    watch(
      () => props.params,
      () => {
        !unref(isFirstLoad) && fetch();
      },
      { deep: true }
    );

    async function fetch() {
      const api = props.api;
      if (!api || !isFunction(api)) return;
      options.value = [];
      try {
        loading.value = true;
        const res = await api(props.params);
        if (Array.isArray(res)) {
          options.value = res;
          emitChange();
          return;
        }
        if (props.resultField) {
          options.value = get(res, props.resultField) || [];
        }
        emitChange();
      } catch (error) {
        console.warn(error);
      } finally {
        loading.value = false;
      }
    }

    function emitChange() {
      emit("options-change", unref(getOptions));
    }

    function handleChange(_, ...args) {
      emitData.value = args;
    }

    return { state, getOptions, attrs, loading, t, handleChange, props };
  }
});
</script>
